Bacille Calmette Guerin (BCG), which has been used since 1921 as the only vaccine against tuber-culosis (TB), protects poorly, if at all, against pulmonary tube
Background: While we are inching towards global eradication of polio, the paralysis due to non-polio viruses (NPEV) poses greater challenge. Factors responsible
In this study, we determined the suitability of lentogenic LaSota and naturally occurring avirulent I2 vaccine strains of Newcastle disease (ND) virus for effic